this morning we remember nelson mandela. in life he united south africa and the world and his legacy as a fighter for freedom will continue to resonate well after his death. icon, legend, hero. none of those words seem quite big enough to describe a man who changed the world. ♪ and yet in the streets of johannesburg, the crowds are celebratory. south africa planning ten days of mourning. mandela's body will lie in state with leaders from all over the